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Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine-scaled spatial patterns

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor Háskólinn á Hólum
dc.contributor Hólar University College
dc.contributor.author Magnúsdóttir, Hildur
dc.contributor.author Palsson, Snaebjorn
dc.contributor.author Westfall, Kristen M.
dc.contributor.author Jónsson, Zophonías Oddur
dc.contributor.author Örnólfsdóttir, Erla Björk
dc.date.accessioned 2018-12-03T14:19:54Z
dc.date.available 2018-12-03T14:19:54Z
dc.date.issued 2018-04-10
dc.identifier.citation Magnúsdóttir, H., Pálsson, S., Westfall, K. M., Jónsson, Z. O., & Örnólfsdóttir, E. B. (2018). Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine-scaled spatial patterns. Ecology and Evolution, 8(9), 4552-4563. doi:doi:10.1002/ece3.4015
dc.identifier.issn 2045-7758
dc.identifier.uri https://hdl.handle.net/20.500.11815/935
dc.description Publisher's version (útgefin grein)
dc.description.abstract Geographical patterns in morphology can be the result of divergence among populations due to neutral or selective changes and/or phenotypic plasticity in response to different environments. Marine gastropods are ideal subjects on which to explore these patterns, by virtue of the remarkable intraspecific variation in life‐history traits and morphology often observed across relatively small spatial scales. The ubiquitous N‐Atlantic common whelk (Buccinum undatum) is well known for spatial variation in life‐history traits and morphology. Previous studies on genetic population structure have revealed that it exhibits significant differentiation across geographic distances. Within Breiðafjörður Bay, a large and shallow bay in W‐Iceland, genetic differentiation was demonstrated between whelks from sites separated by just 20 km. Here, we extended our previous studies on the common whelk in Breiðafjörður Bay by quantifying phenotypic variation in shell morphology and color throughout the Bay. We sought to test whether trait differentiation is dependent on geographic distance and/or environmental variability. Whelk in Breiðafjörður Bay displayed fine‐scale patterns of spatial variation in shape, thickness, and color diversity. Differentiation increased with increasing distance between populations, indicating that population connectivity is limited. Both shape and color varied along a gradient from the inner part of the bay in the east to the outer part in the west. Whelk shells in the innermost part of Breiðafjörður Bay were thick with an elongate shell, round aperture, and low color diversity, whereas in the outer part of the bay the shells were thinner, rounder, with a more elongate aperture and richer color diversity. Significant site‐specific difference in shell traits of the common whelk in correlation with environmental variables indicates the presence of local ecotypes and limited demographic connectivity.
dc.description.sponsorship The project was funded by a research grant no. 141302051 from the Icelandic Centre for Research and a PhD grant from the University of Iceland Research Fund to Hildur Magnúsdóttir.
dc.format.extent 4552-4563
dc.language.iso en
dc.publisher Wiley
dc.relation.ispartofseries Ecology and Evolution;8(9)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Buccinum undatum
dc.subject Shell morphology
dc.subject Shell color
dc.subject Spatial patterns
dc.subject Subtidal gastropods
dc.subject Beitukóngur
dc.subject Skeldýr
dc.subject Sjávarlíffræði
dc.title Shell morphology and color of the subtidal whelk Buccinum undatum exhibit fine-scaled spatial patterns
dc.type info:eu-repo/semantics/article
dcterms.license This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.description.version Peer Reviewed
dc.identifier.journal Ecology and Evolution
dc.identifier.doi 10.1002/ece3.4015
dc.contributor.department Líf- og umhverfisvísindadeild (HÍ)
dc.contributor.department Faculty of Life and Environmental Sciences (UI)
dc.contributor.department Fiskeldis- og fiskalíffræðideild (HH)
dc.contributor.department Department of Aquaculture and Fish Biology (HUC)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

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